Medium
alsa-lib — security advisory
alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.
- Products
- alsa-lib
- Affected versions
- 1.0.27.2-1ubuntu6, 1.0.27.2-1ubuntu7, 1.0.27.2-3ubuntu1, 1.0.27.2-3ubuntu2, 1.0.27.2-3ubuntu5, 1.0.27.2-3ubuntu6, 1.0.27.2-3ubuntu7, 1.0.29-0ubuntu1, 1.1.0-0ubuntu1, 1.1.3-5, 1.1.3-5ubuntu0.1, 1.1.3-5ubuntu0.2, 1.1.3-5ubuntu0.4, 1.1.3-5ubuntu0.5, 1.1.3-5ubuntu0.6, 1.1.9-0ubuntu1, 1.2.1.2-2ubuntu2, 1.2.10-1, 1.2.10-2, 1.2.10-3, 1.2.10-3build1, 1.2.11-1build1, 1.2.11-1build2, 1.2.11-1ubuntu0.1, 1.2.11-1ubuntu0.2, 1.2.11-1ubuntu0.3, 1.2.14-1ubuntu1, 1.2.14-2ubuntu1, 1.2.15-2, 1.2.15.1-1, 1.2.15.3-1, 1.2.15.3-1build1, 1.2.15.3-1ubuntu1, 1.2.15.3-1ubuntu1.1, 1.2.16.1-1, 1.2.2-2.1, 1.2.2-2.1ubuntu1, 1.2.2-2.1ubuntu2, 1.2.2-2.1ubuntu2.1, 1.2.2-2.1ubuntu2.2, 1.2.2-2.1ubuntu2.3, 1.2.2-2.1ubuntu2.4, 1.2.2-2.1ubuntu2.5, 1.2.2-2.1ubuntu2.5+esm1, 1.2.2-2ubuntu1, 1.2.4-1.1ubuntu3, 1.2.4-1.1ubuntu4, 1.2.5.1-1ubuntu1, 1.2.6.1-1ubuntu1, 1.2.6.1-1ubuntu1.1, 1.2.6.1-1ubuntu1.2, 1.2.9-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-96674
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:34 UTC · Revision 1
Source evidence
alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.
osv:UBUNTU-CVE-2026-96674
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
alsa-lib
Fixed versions: Not specified
Complete source record
{
"id": "48ff6470e13f599998724782b74cd5cd41999891f5766602101fa74c35c64105",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-96674",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-96674",
"summary": "alsa-lib through 1.2.16.1 computes combined topology element size using 32-bit arithmetic in src/topology/ctl.c, allowing integer overflow that defeats bounds checks. Attackers can supply crafted topology files that wrap size calculations, causing the decoder to read beyond the topology buffer and potentially leak sensitive data or crash the application.",
"evidence": "osv:UBUNTU-CVE-2026-96674",
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],
"modified": "2026-10-17T13:01:19.644817806Z",
"provider": "osv",
"upstream": [
"CVE-2026-96674"
],
"references": [
"https://ubuntu.com/security/CVE-2026-96674",
"https://www.cve.org/CVERecord?id=CVE-2026-96674",
"https://github.com/alsa-project/alsa-lib/pull/527",
"https://github.com/alsa-project/alsa-lib",
"https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1316-L1326",
"https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1420-L1430",
"https://github.com/alsa-project/alsa-lib/blob/v1.2.16.1/src/topology/ctl.c#L1511-L1521",
"https://www.vulncheck.com/advisories/alsa-lib-through-1.2.16.1-integer-overflow-via-topology-file"
]
},
"related_cves": [
{
"value": "CVE-2026-96674",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 361704,
"published_at": "2026-09-23T16:16:00+00:00"
}